Small underground working with two collapsed adits.
Publications (1)
- Richards, Alun John (1991); Gazeteer of the Welsh Slate Industry, A; Gwasg Carreg Gwalch 978-0863811968
 
         
    
Jan 1st, 2024 from GWSI by Buddle-Bot
| North Wales | |
| Llan Ffestiniog | |
| 52.954101, -3.9070022 | |
| SH 7199 4134 | |
| Private Land | |
| 225m | |
| #1,546 | 
Small underground working with two collapsed adits.
 Cwm Cynfal - 771m
Cwm Cynfal - 771m Bron Goronwy - 815m
Bron Goronwy - 815m Y Cefn - 1,022m
Y Cefn - 1,022m Bryn-Glas - 1,417m
Bryn-Glas - 1,417m Hafod Fawr - 1,458m
Hafod Fawr - 1,458m Cwm Cynfal - 1,945m
Cwm Cynfal - 1,945m